Method of making stay strips for boxes



w. n. KHVIBALL.

METHOD OF MAKING STAY STRIPS FOR BOXES.

' APPLICATION FILED JULY 14,1917. RENEWED SEPT. 19. 1922.

13134521 3., 'latenbed Oct. 3L 19220 Patented Set. 31, T9 22.

UNHTED STATS rattan PATENT WALLACE ID. KIMBALL, OF NEW YORK, N. Y., ASSIGN OR, BY IVIESNE ASSIGNMENTS, TO NASHUA GUDIMED & COATED PAPER COMPANY, OF NASI-IUA, NEW HAMPSHIRE.

METHOD OF MAKING STAY STRIPS FOR BOXES.

Application filed July 14, 1917, Serial No. 180,584.

To all whom it may concern.

Be it known that I, TVALLACE D. KIMBALL, a citizen of the United States, and a resident of the city, county, and State of New York, have invented new and useful Improvements in Methods of Making Stay Strips for Boxes, of which the following is a specification.

This invention relates to a method of making stay strips for boxes.

In the art of staying boxes, particularly hat boxes, where the stay strip connects the fiat bottom of the box to the cylindrical wall, it has been the practice to cut the stay strip transversely of the web of the paper in order that the strip may be somewhat elastic and thus allow the edge connected to the cylindrical portion of the box to stretch as it is applied to the box, so that the other edge will fold down flat against the bottom of the box without wrinkling, as would necessarily occur witha stay strip incapable of stretch- It is well known that paper is much more elastic across the web than in the direction of the web, for the reason that the paper is drawn through the paper-making and cal-.

endering machine in the direction of the web and is stretched in the making in that direction, but not in the transverse direction. It has therefore been necessary in the art of staying hat boxes and others in which the two edges of the stay strip are applied to surfaces of equal length, to cut the stay strips across the web and apply them singly by hand. This method of procedure is much slower than when the stay strip is automatically fed and cut off the required length for application to the box by modern strip-serving machines such as generally employed in the manufacture of boxes of a shape such that stay strips cut in the direction of the web may be used.

By the method of producing stay strips forming the subjectmatter of my present invention, I provide a stay strip in a continuous length for use in the strip-serving machines, but cut transversely of the web so as to have all the advantages of the separately cut stay strips heretofore used.

A further object of my invention is to provide a method of forming stay strips of this character which will be little, if any, more expensive than the production of ordinary stay strips running in the direction of the web.

Renewed September 19, 1922. Serial No. 589,233.

In the accompanying drawings I have illustrated in Figs. 1, 2 and 3 the several steps in the method of making my improved stay strip, while in Figs. 4: and 5 I have shown in elevation and perspective, respectively, the application of the stay strip to the box, and in Figure 6 T have shown a modified form of strip.

In manufacturing my improved stay strip I take a roll of paper of as great a width as can conveniently be had in the desired quality, and gum'one surface and reroll it in the manner usual in the manufacture of ordinary gummed tape. Instead, however, of slitting the roll into strips of the desired width, I draw off from the roll 1 a length of the web as indicated at 2, and then cut from the end of the web by a transverse cut, a sheet 3 of a width as great as may be con veniently handled by the slitting machine. This sheet 3 is then attached along one of its edges running parallel with the length of the web to the side edge of a similar sheet by means of a strip'of tape 4 which is prefer ably of light stock, so as to add very little to the thickness of the paper.

The connecting strip may be applied by moistening the strip on its ungummed side and applying it to the meeting edges of the sheets 3 on their gumined surfaces so that the gummed surface of the strip will form with the gummed surfaces of the sheets a continuous gummed face on the web made up of the successively cut and attached sheets. The stay strip may, if desired, be gummed on both faces to secure better adhesion to the meeting edges of the sheets, or the connecting strips may be applied to the ungummed face of the sheets as desired.

The web produced by thus cutting the sheets from the web and attaching them with the grain of the original web, if it may be so termed, extending transversely of the made-up web, is wound into the roll and is then run through the slitting machine which slits the web into individual strips as indicated. at 5 in Fig. 3, each of which forms a separate roll 6 of gummed tape for use in the strip-serving machine.

In Figs. 4; and 5 T have shown the manner of applying the strip to the box. Here the box body is shown at 7 and the bottom or end disk at 8. The strip-serving machine is adjusted to moisten and cut off a section 9 of the stay strip about equal to the circumference of the bpaandwithout regard to, the location-Jot the connecting splices, "so that-one roll of tape may be used for any size box by mer ly adj sting the. t e pt, th str pi-servng machine- The box-maker 'ap'plies the 'moistened at the bottom edge of the box body stretch ing the lower edge of the strip as he draws it 'a'roundflthe circumference otthe box body, thereby causing the unstretched and unattached upper;v i edge of the strip vtO: turn (@in- Wardly over the bottom 'ofthe box -as shown g. 4: After the," edge of the stay strip is drawn aroundaan-dattaohiedwto the boxbody, th-e other edgeiis' pressed down againstthebox :bottom, producing a 1 smooth 1m Wrinkledsurface as indicated in If the small splicing piece isgarrangedas shown win "Fig; on :theuunder side of the tape, the splieedyj oint Will not be not'iceable in the finished box, the appearance ofthe joint"- being practically the same as that produced by the lapped J ends a of; theastay strip. I

A stay-stripmaderaccording to uny'iimproved methodhhas decided advantages in the box-making art. :lnthefirstplace, a single roll of tape is adaptable for boxes of all diameters; "Whereas-by the previous method;

the strips haveto be out from a Web whose.

WlClth'lS substantially'equal to the diameter of the: box; as otherwise-therewould be a considerable Waste "of paper. The chief. ad'- vantage however v is: that-With my improved stay strip, automatic moistening and cutting machines may be used bymeansofwvhieh the box maker mayproduce an outputin'a given time 1 greatly inexcess of his previous pro'dnction' by the old method of moistening: the previously outstrips. ,The'saving in lahon 'n ipre --thani-;ofl sets the additional cost of cutting andreassembling sthe sheets which make up the Web.

I st .d. etcon e ing th s p t sheet p mjtljeffirst, Web means ofspliced strips, as "sh'o'wn, theedges of the strips may be la] )p egl,one ontheother as indicated at 10 in Fig. 6, or any other approved method 1; The method: of i which consistswin-rcutting from -the end of a Web' a series of sheets and reconnecting thei sheets withthe grain of the paper runnin'g atiright angles 'to the direction of'the' grain 'in'the original 5 Web; and thereafter slitting the DTHLlG-HP' web Pinto strips of the desired 2.: "Themethod of making strips' of gummed; paper "which," consists in cuttingfrom the end {of a previously-- gummed- Web of;v paper having ;alongitudinal grain se-' ries of sheetsaand reconnectingthe sheets at their side-ec'lges te form a composite Web having the *grain extending-'- transversely thereof and havmg a continuously gummed' surface including the connected 7 portions, and thereafter slitting -saidcomposite Web into strips of the-desired Width? Signed atNew York city, in the'county of New York and State: of New York this 13th day of Jul'yglSlY.

WALLACE n. :inMnALL. 

